Student Assignments for EM-330-1_052616 Fuel Injection and GM Engine Management Trainer EM-330-1_052616-95_V2024-1 © ConsuLab Educatech Inc, 2024. All rights reserved. EM-330-1_052616-95 Table of Contents 400-6330 Zéphirin-Paquet St. Québec QC G2C 0M3 Canada consulab.com info@consulab.com Toll-free: +1 (800) 567-0791 USA: +1 (810) 222-4525 Canada: +1 (418) 688-9067 Fax: +1 (418) 843-3444 3 Table of Contents General Description 4 Educational Advantages 4 Application 4 Standard Equipment and Features 4 Student Assignments DMM vs Scanner 5 DMM vs Scanner — Lab 1 6 Student Answer Sheet 7 DMM vs Scanner — Lab 2 8 Student Answer Sheet 9 DMM vs Scanner — Lab 3 10 Student Answer Sheet 11 DMM vs Scanner — Lab 4 12 Student Answer Sheet 13 DMM vs Scanner — Lab 5 14 Student Answer Sheet 15 Using a Scanner 16 Using A Scanner — Lab 1 17 Student Answer Sheet 18 Using a Scanner — Lab 2 19 Student Answer Sheet 20 Using a Scanner — Lab 3 21 Student Answer Sheet 22 Using a Scanner — Lab 4 23 Student Answer Sheet 24 Using a Scanner — Lab 5 25 Student Answer Sheet 26 Using a Scanner — Lab 6 27 Student Answer Sheet 28 Using a Scanner — Lab 7 29 Student Answer Sheet 30 EM-330-1_052616-95 Table of Contents 400-6330 Zéphirin-Paquet St. Québec QC G2C 0M3 Canada consulab.com info@consulab.com Toll-free: +1 (800) 567-0791 USA: +1 (810) 222-4525 Canada: +1 (418) 688-9067 Fax: +1 (418) 843-3444 4 DSO 31 DSO — Lab 1 32 Student Answer Sheet 33 DSO — Lab 2 34 Student Answer Sheet 35 DSO — Lab 3 36 Student Answer Sheet 37 DSO — Lab 4 38 Student Answer Sheet 39 DSO — Lab 5 40 Student Answer Sheet 41 DSO — Lab 6 42 Student Answer Sheet 43 DSO — Lab 7 44 Student Answer Sheet 45 DSO — Lab 8 46 Student Answer Sheet 47 DSO — Lab 9 48 Student Answer Sheet 49 DSO — Lab 10 50 Student Answer Sheet 51 DSO — Lab 11 52 Student Answer Sheet 53 DSO — Lab 12 54 Student Answer Sheet 55 DSO — Lab 13 56 Student Answer Sheet 57 DSO — Lab 14 58 Student Answer Sheet 59 DSO — Lab 15 60 Student Answer Sheet 61 DSO — Lab 16 62 Student Answer Sheet 63 DSO — Lab 17 64 Student Answer Sheet 65 Test Banks Test Bank 1 (DMM Use) 67 Student Answer Sheet 69 Test Bank 2 (Scanner Use) 70 EM-330-1_052616-95 Table of Contents 400-6330 Zéphirin-Paquet St. Québec QC G2C 0M3 Canada consulab.com info@consulab.com Toll-free: +1 (800) 567-0791 USA: +1 (810) 222-4525 Canada: +1 (418) 688-9067 Fax: +1 (418) 843-3444 5 © ConsuLab Educatech Inc, 2024. All rights reserved. No part of this work may be reproduced or transmitted in any form by any means, electronic, mechanical, including photocopying and recording, or by any information storage or retrieval system, without written permission from the publisher. Printed in Canada. The content of this manual is applicable to models 052616 and above. Student Answer Sheet 72 Test Bank 3 (DSO Use) 73 Student Answer Sheet 75 EM-330-1 Power Distribution Wiring Diagram 76 EM-330-1 Engine Performance Wiring Diagram 77 consulab.com info@consulab.com 6 EM-330-1_052616-95 General Description General Description The ConsuLab EM-330-1 Fuel Injection and Engine Management Trainer functions as in a real automobile, but uses non-flammable fluid instead of gasoline for safety and educational purposes. The trainer is used to teach and demon- strate engine management systems in a vehicle. Educational Advantages • Allows demonstration of engine management systems in a classroom environment. • Allows full communication with a scan tool for fault codes and data stream. • Live fuel injection operation using non-flammable fluid in a transparent enclosed system. • Live ignition system function with observable spark. Application 2007 GM Chevrolet Cobalt or Pontiac G5, 2.2L ECOTEC Standard Equipment and Features • All OEM components, wiring, connectors and wire colors. • OBDII data link connector. • Integrated ECM breakout box. • Most engine input sensors and output actuators. • Return type fuel system with pressure regulator. • COP (Coil-On-Plug) ignition system. • ECM breakout box with test receptacles for test equipment hookup. • Adjustable sensor inputs. consulab.com info@consulab.com 7 EM-330-1_052616-95 Student Assignments — DMM vs Scanner Student Assignments DMM vs Scanner consulab.com info@consulab.com 8 EM-330-1_052616-95 DMM vs Scanner — Lab 1 DMM vs Scanner — Lab 1 Use the answer sheet for your answers. Do not write on this paper. Introduction. In the next series of labs we will look at a cause and effect condition. The DMM will give us the opportunity to look at the cause and the scanner will show the effect. At this point if you are having difficulties operating the scanner, ask your instructor for help. 1. Check out a DMM from the tool room. Insure that it has sufficient battery power. 2. Check out a Scanner with an OBD connector. 3. Connect the negative lead from the DMM to the ignition negative terminal near the ignition switch. Do not use any other ground. 4. Turn on the power supply switch. The battery light should come on. 5. Connect the positive DMM lead to the ignition positive terminal. What voltage do you see ? V DC 6. Connect the scanner to the DLC and power it up. 7. Program the scanner so it is capable of reading the scan data stream and look at intake air temperature (IAT). 8. Move the positive DMM lead over to pin 58 of the X-1 connector breakout box (next to the ignition switch). 9. Switch the IAT switch up to the adjust position. 10. Record : A. Pin 58 Voltage V B. IAT scan data temperature °F 11. Turn the sensor adjust knob slowly until 2.5 V shows on the DMM. What temperature does the scanner read ? °F 12. Turn the sensor adjust knob until 1.25 V shows on the DMM. What temperature does the scanner read ? °F 13. Turn the sensor adjust knob slowly until 3.75 V shows on the DMM. What temperature does the scanner read ? °F 14. The readings should have shown you a relationship between the voltage and the temperature. What is this relationship ? 15. Set the IAT switch back to the Sensor position. consulab.com info@consulab.com 9 EM-330-1_052616-95 DMM vs Scanner — Lab 1 Student Answer Sheet 5. What voltage do you see ? V DC 10. A. Pin 58 Voltage V B. IAT scan data temperatur °F 11. What temperature does the scanner read ? °F 12. What temperature does the scanner read ? °F 13. What temperature does the scanner read ? °F 14. What is this relationship ? Name : Group : Date : Instructor : Grade : consulab.com info@consulab.com 10 EM-330-1_052616-95 DMM vs Scanner — Lab 2 DMM vs Scanner — Lab 2 Use the answer sheet for your answers. Do not write on this paper. Introduction : This lab is a continuation of the cause and effect lab. The DMM will give us the opportunity to look at the cause and the scanner will show the effect. At this point if you are having difficulties operating the scanner, ask your instructor for help. 1. Check out a DMM from the tool room. Insure that it has sufficient battery power. 2. Check out a Scanner with an OBD connector. 3. Connect the negative lead from the DMM to the ignition negative terminal near the ignition switch. Do not use any other ground. 4. Turn on the power supply switch. The battery light should come on. 5. Connect the positive DMM lead to the ignition positive terminal. What voltage do you see ? V DC 6. Connect the scanner to the DLC and power it up. 7. Program the scanner so it can read the scan data stream and look at Engine Coolant Temperature (ECT). 8. Move the positive DMM lead over to pin 58 of the X-2 connector breakout box (next to the ignition switch). Note there are two pin 58’s. One on X-1 and one on X-2. 9. Switch the ECT switch up to the adjust position. 10. Record A. Pin 58 Voltage V B. ECT scan data temperature °F 11. Turn the sensor adjust knob slowly until 2.5 V shows on the DMM. What temperature does the scanner read ? °F 12. Turn the sensor adjust knob slowly until 1.25 V shows on the DMM. What temperature does the scanner read ? °F 13. Turn the sensor adjust knob slowly until 3.75 V shows on the DMM. What temperature does the scanner read ? °F 14. The readings should have shown you a relationship between the voltage and the engine temperature. What is this relationship ? 15. Rotate the ECT adjustment knob until engine temperature reads about 180 °F. consulab.com info@consulab.com 11 EM-330-1_052616-95 DMM vs Scanner — Lab 2 Student Answer Sheet 5. What voltage do you see ? V DC 10. A. Pin 58 Voltage V B. ECT scan data temperature °F 11. What temperature does the scanner read ? °F 12. What temperature does the scanner read ? °F 13. What temperature does the scanner read ? °F 14. What is this relationship ? Name : Group : Date : Instructor : Grade : consulab.com info@consulab.com 12 EM-330-1_052616-95 DMM vs Scanner — Lab 3 DMM vs Scanner — Lab 3 Use the answer sheet for your answers. Do not write on this paper. Introduction : This lab is a continuation of the cause and effect lab. The DMM will give us the opportunity to look at the cause and the scanner will show the effect. 1. Check out a DMM from the tool room. Insure that it has sufficient battery power. 2. Check out a Scanner with an OBD connector. 3. Connect the negative lead from the DMM to the ignition negative terminal near the ignition switch. Do not use any other ground. 4. Turn on the power supply switch. The battery light should come on. 5. Connect the positive DMM lead to the ignition positive terminal. What voltage do you see ? V DC 6. Connect the scanner to the DLC and power it up. 7. Program the scanner so it can read the scan data stream and look at Mass Air Flow (MAF). 8. Move the positive DMM lead over to pin 37 of the X-1 connector breakout box (next to the ignition switch). 9. Switch the MAF switch up to the adjust position. 10. Record : A. Pin 37 Voltage V B. MAF lb/min 11. Turn the sensor adjust knob ¼ turn clockwise and record : A. Pin 37 Voltage V B. MAF lb/min 12. Turn the sensor adjust knob ½ turn counterclockwise and record : A. Pin 37 Voltage V B. MAF lb/min 13. The readings should have shown you a relationship between the voltage and the MAF. What is this relationship ? 14. Set the MAF switch back to the Sensor position. consulab.com info@consulab.com 13 EM-330-1_052616-95 DMM vs Scanner — Lab 3 Student Answer Sheet 5. What voltage do you see ? V DC 10. A. Pin 37 Voltage V B. MAF lb/min 11. A. Pin 37 Voltage V B. MAF lb/min 12. A. Pin 37 Voltage V B. MAF lb/min 13. What is this relationship ? Name : Group : Date : Instructor : Grade : consulab.com info@consulab.com 14 EM-330-1_052616-95 DMM vs Scanner — Lab 4 DMM vs Scanner — Lab 4 Use the answer sheet for your answers. Do not write on this paper. Introduction : This lab is a continuation of the cause and effect lab. The DMM will give us the opportunity to look at the cause and the scanner will show the effect. At this point if you are having difficulties operating the scanner, ask your instructor for help. 1. Check out a DMM from the tool room. Insure that it has sufficient battery power. 2. Check out a Scanner with an OBD connector. 3. Connect the negative lead from the DMM to the ignition negative terminal near the ignition switch. Do not use any other ground. 4. Turn on the power supply switch. The battery light should come on. 5. Connect the positive DMM lead to the ignition positive terminal. What voltage do you see ? V DC 6. Connect the scanner to the DLC and power it up. 7. Program the scanner so it can read the scan data stream and look at Manifold Absolute Pressure (MAP). 8. Move the positive DMM lead over to pin 39 of the X-2 connector breakout box (next to the ignition switch. 9. Switch the MAP switch up to the adjust position. 10. Record : A. Pin 39 Voltage V B. MAP scan data PSI 11. Turn the sensor adjust knob slowly until 2.5 V shows on the DMM. What does MAP read ? PSI 12. Turn the sensor adjust knob slowly until 1.25 V shows on the DMM. What does MAP read ? PSI 13. Turn the sensor adjust knob slowly until 3.75 V shows on the DMM. What does MAP read ? PSI 14. The readings should have shown you a relationship between the voltage and the MAP. What is this relationship ? 15. Set the MAP switch back to the Sensor position. consulab.com info@consulab.com 15 EM-330-1_052616-95 DMM vs Scanner — Lab 4 Student Answer Sheet 5. What voltage do you see ? V DC 10. A. Pin 39 Voltage V B. MAP scan data PSI 11. What does MAP read ? PSI 12. What does MAP read ? PSI 13. What does MAP read ? PSI 14. What is this relationship ? Name : Group : Date : Instructor : Grade : consulab.com info@consulab.com 16 EM-330-1_052616-95 DMM vs Scanner — Lab 5 DMM vs Scanner — Lab 5 Use the answer sheet for your answers. Do not write on this paper. Introduction : This lab is a continuation of the cause and effect lab. The DMM will give us the opportunity to look at the cause and the scanner will show the effect. At this point if you are having difficulties operating the scanner, ask your instructor for help. 1. Check out a DMM from the tool room. Insure that it has sufficient battery power. 2. Check out a Scanner with an OBD connector. 3. Connect the negative lead from the DMM to the ignition negative terminal near the ignition switch. Do not use any other ground. 4. Turn on the power supply switch. The battery light should come on. 5. Connect the positive DMM lead to the ignition positive terminal. What voltage do you see ? V DC 6. Connect the scanner to the DLC and power it up. 7. Program the scanner so it can read the scan data stream and look at Fuel Injector Pulse Width. 8. Move the positive DMM lead over to pin 37 of the X-1 connector breakout box (next to the ignition switch). 9. Switch the MAF switch up to the adjust position. 10. Record : A. Pin 37 Voltage V B. Fuel Injector Pulse Width mS 11. Turn the sensor adjust knob ¼ turn clockwise (to the 3 o’clock position) and record : Fuel Injector Pulse Width mS 12. Turn the sensor adjust knob ½ turn counterclockwise (to the 9 o’clock position and record : Fuel Injector Pulse Width mS 13. The readings should have shown you a relationship between the Fuel Injector Pulse Width and the MAF Voltage. What is this relationship ? 14. Set the MAF switch back to the Sensor position. consulab.com info@consulab.com 17 EM-330-1_052616-95 DMM vs Scanner — Lab 5 Student Answer Sheet 5. What voltage do you see ? V DC 10. A. Pin 37 Voltage V B. Fuel Injector Pulse Width mS 11. Fuel Injector Pulse Width mS 12. Fuel Injector Pulse Width mS 13. What is this relationship ? Name : Group : Date : Instructor : Grade : consulab.com info@consulab.com 18 EM-330-1_052616-95 Student Assignments — Using a Scanner Student Assignments Using a Scanner consulab.com info@consulab.com 19 EM-330-1_052616-95 Using A Scanner — Lab 1 Using A Scanner — Lab 1 Use the answer sheet for your answers. Do not write on this paper. Introduction : In this lab you will experience how a scanner can be used to «see» what the various vehicle control mod- ules are doing. You will be able to see information in normal parameters, like temperature in degrees. Additionally, you will use a Break Out Box (BOB) to look at power and ground at the data connector (DLC). 1. Check out a scanner from the tool room. 2. Using the ConsuLab EM-330-1, verify that power is available to the trainer. 3. Connect or verify that the DLC Breakout Box (BOB) is connected. 4. Connect the scanner to the BOB and turn on the trainer power. 5. The BOB should show a bright red light on pin 16 and two green lights on pins 4 and 5. Ask your instructor for assistance if the lights are not on. 6. Turn the 330 key to the run position and turn on the scanner. 7. Either enter the required information so the scanner can communicate with the DLC. 8. Turn the ignition key to the start then run position. The trainer should begin to inject fuel and fire the spark plugs. 9. Set the engine RPM to 500 – 600. Make sure the switch for ECT is in the adjust position. Leave all other switches in the sensor position and the HO2S-1 in the normal position. 10. Record the following information off the scanner. Do not change the 330 settings during this portion of the lab. If your scanner can capture the data in printable format, print the following : A. ECT °F B. IAT °F C. MAP PSI D. MAF lb/min E. Fuel Injector pulse width mS F. Fuel trim bank 1 % G. Throttle position % H. Engine RPM rpm 11. Show the results to your instructor who will sign off if it is correct. consulab.com info@consulab.com 20 EM-330-1_052616-95 Using A Scanner — Lab 1 Student Answer Sheet 10. A. ECT °F B. IAT °F C. MAP PSI D. MAF lb/min E. Fuel Injector pulse width mS F. Fuel trim bank 1 % G. Throttle position % H. Engine RPM rpm Name : Group : Date : Instructor : Grade : consulab.com info@consulab.com 21 EM-330-1_052616-95 Using A Scanner — Lab 2 Using a Scanner — Lab 2 Use the answer sheet for your answers. Do not write on this paper. Introduction : The advantages of using a scanner is that it can show DTC (Diagnostic Trouble Codes), in addition to show- ing live or near live data on screen. The use of the scanner for DTC retrieval is the first line of defense. Once DTC’s have been written down, it is normal to clear the codes, and see if they will re-set. Never clear codes without first writing them down. A vehicle history is extremely important and DTC’s past and present give the history. 1. Obtain a scanner from the tool room. 2. Verify that the EM-330-1 has power available. 3. Connect the scanner to the 330 at the BOB. 4. Power up both the scanner and the 330 (key on will allow the system to communicate to the scanner. It is not neces- sary for the motor to be running. 5. Key in the VIN to allow the scanner to connect to the 330. 6. Once it is connected, pull the DTC’s and record below : A. B. C. D. E. F. G. Note : The EM-330-1 will almost always have some DTC’s because it is an incomplete system. For example it will be normal after running that the PCM will not “see” the transmission and will therefor set a DTC. 7. Clear the codes following the procedure of the scanner. This procedure may take a few minutes. If your scanner shows a check engine light, it will go off once the clearing process is over. 8. Show your instructor your results. consulab.com info@consulab.com 22 EM-330-1_052616-95 Using A Scanner — Lab 2 Student Answer Sheet 6. A. B. C. D. E. F. G. Name : Group : Date : Instructor : Grade : consulab.com info@consulab.com 23 EM-330-1_052616-95 Using A Scanner — Lab 3 Using a Scanner — Lab 3 Use the answer sheet for your answers. Do not write on this paper. Introduction : As a DTC is set, the PCM (Powertrain Control Module) will capture the conditions that were present when the problem occurred. The data is set and called Freeze Frame. Think of it as a camera shooting a picture of the con- ditions present. The freeze frame data is very helpful in diagnostics because it is sometimes difficult to duplicate the conditions based on a customer complaint. In this lab, we will look at how to download freeze frame. 1. Obtain a scanner from the tool room. 2. Verify that the EM-330-1 has power available. 3. Connect the scanner to the 330 at the BOB. 4. Power up both the scanner and the 330 (key on will allow the system to communicate to the scanner. It is not neces- sary for the motor to be running.) 5. Key in the VIN to allow the scanner to connect to the 330. 6. Go to the DTC section of the scanner and/or the freeze frame data menu. 7. Either print the data or copy it down below : A. B. C. D. E. F. G. 8. Show your instructor. Be prepared to identify the conditions present when the DTC was set. consulab.com info@consulab.com 24 EM-330-1_052616-95 Using A Scanner — Lab 3 Student Answer Sheet 7. A. B. C. D. E. F. G. Name : Group : Date : Instructor : Grade : consulab.com info@consulab.com 25 EM-330-1_052616-95 Using A Scanner — Lab 4 Using a Scanner — Lab 4 Use the answer sheet for your answers. Do not write on this paper. Introduction : The full capabilities of a scanner are in its use to look at live data or near live data. There is a slight delay in data transfer, but very slight. In this lab, we will explore the capabilities of your scanner. Most scanner allow for the data to be graphed. Some scanners will allow for the data to be printed. 1. Obtain a scanner from the tool room. 2. Verify that the EM-330-1 has power available. 3. Connect the scanner to the 330 at the BOB. 4. Power up both the scanner and the 330 (key on will allow the system to communicate to the scanner. It is not neces- sary for the motor to be running. 5. Key in the VIN to allow the scanner to connect to the 330. 6. Start both the scanner in data mode and the 330. Run the 330 at around 500 – 600 RPM. 7. Look at the data for something that will change like TP (Throttle Position). 8. Go to the graph data mode. Note : you may need your instructors help getting the graph data mode on the screen. 9. With the graph data of the TP on the screen, move the accelerator pedal on the 330 up and down a few times. 10. Either show your instructor or print the graph. 11. Add an additional data line. Use engine RPM so the graph has both TP and RPM on separate lines. Show your instruc- tor or print the result. Note : if you are on a computer based scanner use the print screen function of the computer. consulab.com info@consulab.com 26 EM-330-1_052616-95 Using A Scanner — Lab 4 Student Answer Sheet 10. Attach your print to this answer sheet 11. Attach your print to this answer sheet Name : Group : Date : Instructor : Grade : consulab.com info@consulab.com 27 EM-330-1_052616-95 Using A Scanner — Lab 5 Using a Scanner — Lab 5 Use the answer sheet for your answers. Do not write on this paper. Introduction : One of the best methods to use with a scanner is to show trends and verify operation of the PCM. Does the PCM recognize additional air flow or changing temperatures ? In this lab we will use the capabilities of the EM-330-1 to change the operating conditions while looking at the results. 1. Obtain a scanner from the tool room. 2. Verify that the EM-330-1 has power available. 3. Connect the scanner to the 330 at the BOB. 4. Power up both the scanner and the 330 (key on will allow the system to communicate to the scanner. It is not necessary for the motor to be running. 5. Key in the VIN to allow the scanner to connect to the 330. 6. Start the 330 and set the RPM to 500 – 600 RPM. 7. Go to the live data section of your scanner and put the 4 fuel injector on time PID (parameter Identification) on the screen. 8. Write down the injector mS (milliseconds) of on time. Note : this is the actual time the fuel injector is injecting fuel. Cyl #1 mS Cyl #2 mS Cyl #3 mS Cyl #4 mS 9. Switch the MAF switch on the front panel of the 330 from sensor to adjust. Turn the MAF knob one fourth of a quar- ter (1/4) turn clockwise. This will be an input that more air is flowing through the engine. 10. Record the mS of the four fuel injectors. Cyl #1 mS Cyl #2 mS Cyl #3 mS Cyl #4 mS 11. What change did you observe with the MAF change ? 12. Add MAF data to the screen, if your scanner will allow it. You should now be looking at fuel injector on time and MAF. MAF will be displayed as you rotate the knob slightly and observe the relationship between MAF and Fuel Injector on time.What is the relationship ? 13. Discuss and show your results with your instructor. consulab.com info@consulab.com 28 EM-330-1_052616-95 Using A Scanner — Lab 5 Student Answer Sheet 8. Cyl #1 mS Cyl #2 mS Cyl #3 mS Cyl #4 mS 10. Cyl #1 mS Cyl #2 mS Cyl #3 mS Cyl #4 mS 11. What change did you observe with the MAF change ? 12. What is the relationship ? Name : Group : Date : Instructor : Grade : consulab.com info@consulab.com 29 EM-330-1_052616-95 Using A Scanner — Lab 6 Using a Scanner — Lab 6 Use the answer sheet for your answers. Do not write on this paper. Introduction : During this lab you will look at the relationship between the engine temperature and fuel injector on time. 1. Obtain a scanner from the tool room. 2. Verify that the EM-330-1 has power available. 3. Connect the scanner to the 330 at the BOB. 4. Power up both the scanner and the 330 (key on will allow the system to communicate to the scanner.It is not neces- sary for the motor to be running. 5. Key in the VIN to allow the scanner to connect to the 330. 6. Start the 330 and set the RPM to 500 – 600 RPM. 7. Go to the live data section of your scanner and put the 4 fuel injector on time PID (Parameter Identification) on the screen. 8. Write down the injector mS (milliseconds) of on time. Note : this is the actual time the fuel injector is injecting fuel. Cyl #1 mS Cyl #2 mS Cyl #3 mS Cyl #4 mS 9. Make sure that the ECT switch is in the adjust position. 10. Add to the screen display ECT. 11. Turn the ECT adjust knob counterclockwise to run ECT down to 100 °F. 12. What did the mS on time for the injectors do ? 13. Why do you think the change occurred ? 14. Show your instructor your results, and be prepared to discuss them. consulab.com info@consulab.com 30 EM-330-1_052616-95 Using A Scanner — Lab 6 Student Answer Sheet 8. Cyl #1 mS Cyl #2 mS Cyl #3 mS Cyl #4 mS 12. What did the mS on time for the injectors do ? 13. Why do you think the change occurred ? Name : Group : Date : Instructor : Grade : consulab.com info@consulab.com 31 EM-330-1_052616-95 Using A Scanner — Lab 7 Using a Scanner — Lab 7 Use the answer sheet for your answers. Do not write on this paper. Introduction : One of the additional functions of many scanners is the ability to graph a variable signal. We introduced it to you in a previous scanner lab. In this lab we will look at an oxygen signal under normal, rich and lean conditions. 1. Obtain a scanner from the tool room. 2. Verify that the EM-330-1 has power available. 3. Connect the scanner to the 330 at the BOB. 4. Power up both the scanner and the 330 (key on will allow the system to communicate to the scanner. It is not neces- sary for the motor to be running. 5. Key in the VIN to allow the scanner to connect to the 330. 6. Start the 330 and set the RPM to 500 – 600 RPM. 7. Go to the live data section of your scanner and put the HO2S1 on the screen. 8. Go to the graph data section and capture one full screen with the EM-330 HO2S switch in the adjust position and normal. 9. What is the average voltage ? V 10. If your scanner allows for printing, print the scanner screen. 11. Switch to the rich position and record the average voltage : V 12. Print the scanner screen. 13. Switch to the lean position and record the average voltage : V 14. Print the scanner screen 15. What did the average voltage do in a rich condition ? 16. What did the average voltage do in a lean condition ? consulab.com info@consulab.com 32 EM-330-1_052616-95 Using A Scanner — Lab 7 Student Answer Sheet 9. What is the average voltage ? V 10. Attach your print to this answer sheet. 11. Switch to the rich position and record the average voltage : V 12. Attach your print to this answer sheet. 13. Switch to the lean position and record the average voltage : V 14. Attach your print to this answer sheet. 15. What did the average voltage do in a rich condition ? 16. What did the average voltage do in a lean condition ? Name : Group : Date : Instructor : Grade : consulab.com info@consulab.com 33 EM-330-1_052616-95 Student Assignments — DSO Student Assignments DSO consulab.com info@consulab.com 34 EM-330-1_052616-95 DSO — Lab 1 DSO — Lab 1 Use the answer sheet for your answers. Do not write on this paper. Introduction : The use of a DSO has improved the ability of the technician to diagnose and verify a repair. The DSO used to be considered an optional tool, however is now considered an essential tool. As the vehicle has changed, the speed of many sensors has increased to the point that a digital multimeter cannot keep up. The DSO will allow you to observe changing voltages over a period of time. Both the voltage and the time will be adjustable on the DSO that your school has. Your instructor has shown you how to set the basics of the DSO. If you cannot set the voltage and/or the time, you need to seek out your instructor before you attempt these labs. 1. Check out a DSO from the tool room. Insure that it has sufficient battery power or that you have an AC adapter present. 2. Connect the DSO leads to the DSO. 3. Connect the positive lead of the DSO to the + breakout terminal next to the ignition key on the EM-330-1. 4. Connect the negative lead of the DSO to the ground breakout terminal next to the ignition key. 5. Turn on the power supply switch. The battery light should come on. 6. What do you think the voltage reading should be ? V 7. Why ? 8. Set the voltage per division so that you should be able to read the total voltage. Most scopes will change the volt- age per division in a 1, 2, 5 fashion. And then repeat with a zero added, etc. 1, 2, 5, 10, 20, 50 ... Count the number of division that you have available for voltage and multiply by the V/Div. For example we think the voltage is around 12 and our DSO has 8 divisions of voltage available. If we choose 1 volt per division we would only have a total available display of 8 volts (1 V/div X 8 = 8 V) A total of 8 volts will not display 12 volts, right ? Set your V/Div to show what you “expect” to see. At the other end of the adjustment, if we choose 50 V/Div, we would have a total of 400 V. This would make a 12V pattern really small and difficult to see. The goal is always to nearly fill the screen. 9. What V/Div did you choose ? V/Div 10. The time per division (T/Div) is the next setting. Because we will look at steady battery voltage that is not changing, just about any time per division will work. 11. What T/Div did you choose ? T/Div 12. Capture a pattern, press hold and either draw or print the pattern. 10. The time per division (T/Div) is the next setting. Because we will look at steady battery voltage that is not changing, just about any time per division will work. 11. What T/Div did you choose? ______________ T/Div 12. Capture a pattern, press hold and either draw or print the pattern. Use the grid pattern above to draw your pattern. Label the V/Div and the T/Div. The zero line is placed one division up from the bottom and is blue. Show your instructor and be prepared to discuss the settings you choose and the significance of the display. Instructor signature. ____________________________________ Date ________________ Use the grid pattern above to draw your pattern. Label the V/Div and the T/Div. The zero line is placed one division up from the bottom and is blue. Show your instructor and be prepared to discuss the settings you choose and the significance of the display. consulab.com info@consulab.com 35 EM-330-1_052616-95 DSO — Lab 1 Student Answer Sheet 6. What do you think the voltage reading should be ? V 7. Why ? 9. What V/Div did you choose ? V/Div 11. What T/Div did you choose ? T/Div 12. Use the following grid to draw your pattern or print and attach it to this answer sheet. 10. The time per division (T/Div) is the next setting. Because we will look at steady battery voltage that is not changing, just about any time per division will work. 11. What T/Div did you choose? ______________ T/Div 12. Capture a pattern, press hold and either draw or print the pattern. Use the grid pattern above to draw your pattern. Label the V/Div and the T/Div. The zero line is placed one division up from the bottom and is blue. Show your instructor and be prepared to discuss the settings you choose and the significance of the display. Instructor signature. ____________________________________ Date ________________ Name : Group : Date : Instructor : Grade : consulab.com info@consulab.com 36 EM-330-1_052616-95 DSO — Lab 2 DSO — Lab 2 Use the answer sheet for your answers. Do not write on this paper. Introduction : The real advantage to a DSO is in its ability to capture and hold a varying voltage signal. In this lab, we will look at just that type of signal. We will use the CMP (Camshaft Position Sensor). Once we have captured the signal we will use the hold function of the DSO freezing the pattern on the screen allowing for measurement of the signal. 1. Check out a DSO from the tool room. Insure that it has sufficient battery power or that you have an AC adapter present. 2. Connect the DSO leads to the DSO. 3. Connect the negative lead of the DSO to the engine ground terminal near the ignition switch. 4. Using a wiring diagram or pinout chart for the EM-330-1 find the CMP and identify the 3 wires : A. B. C. 5. Notice that this sensor has a 5 V reference identified. This is the power for the sensor. 6. Which wire and pin is the ground for the sensor ? 7. Connect the positive lead of the DSO to the remaining pin. It is the signal. 8. If we know that the sensor is powered it should make sense to you that the V/Div needs to be capable of capturing 5 volts. Set the DSO accordingly. 9. Use the T/Div settings to show at least four patterns on the screen. 10. Print or draw the pattern below. 11. What is the top of the pattern voltage? _______V 12. What is the bottom of the pattern voltage? ___________V Be prepared to discuss the pattern with your instructor. Instructor signature _______________________________________ date_____________ 11. What is the top of the pattern voltage ? V 12. What is the bottom of the pattern voltage ? V 13. Be prepared to discuss the pattern with your instructor. consulab.com info@consulab.com 37 EM-330-1_052616-95 DSO — Lab 2 Student Answer Sheet 4. A. B. C. 6. Which wire and pin is the ground for the sensor ? 10. Use the following grid to draw your pattern or print and attach it to this answer sheet. 11. What is the top of the pattern voltage? _______V 12. What is the bottom of the pattern voltage? ___________V Be prepared to discuss the pattern with your instructor. Instructor signature _______________________________________ date_____________ 11. What is the top of the pattern voltage ? V 12. What is the bottom of the pattern voltage ? V Name : Group : Date : Instructor : Grade : consulab.com info@consulab.com 38 EM-330-1_052616-95 DSO — Lab 3 DSO — Lab 3 Use the answer sheet for your answers. Do not write on this paper. Introduction : This lab will allow you to experience a dual trace pattern. “Dual” because it will have two patterns on the screen. Your DSO will allow you to set the V/Div differently for the two patterns but will only have one T/Div. We are not concerned with what the pattern is showing you, only that you can set up and display two patterns. We will the use CMP that you previously captured and add the CKP (Crankshaft Position Sensor). 1. Check out a DSO from the tool room. Insure that it has sufficient battery power or that you have an AC adapter present. 2. Connect the DSO leads to the DSO. 3. Connect the negative lead of the DSO to the engine ground terminal near the ignition switch. 4. Using a wiring diagram or pinout chart for the EM-330-1 find the CKP and identify the 3 wires : A. B. C. 5. Connect the channel 1 (or A) to the CKP Sen Output wire. 6. Connect the channel 2 (or B) to the CMP Sen Output. 7. Start the EM-330-1 and set the speed to around 500 RPM. 8. Adjust the time/div until your pattern shows at least one full CMP pattern change. 9. Freeze the patterns on the screen and show your instructor. 10. Be prepared to discuss the settings. consulab.com info@consulab.com 39 EM-330-1_052616-95 DSO — Lab 3 Student Answer Sheet 4. A. B. C. Name : Group : Date : Instructor : Grade : consulab.com info@consulab.com 40 EM-330-1_052616-95 DSO — Lab 4 DSO — Lab 4 Use the answer sheet for your answers. Do not write on this paper. Introduction : This lab will allow you to capture a voltage waveform pattern from a functioning fuel injector. After cap- turing it you will set cursors up to look at how long the injector pulse was. You will also look at the pintle closing signal. 1. Check out a DSO from the tool room. Insure that it has sufficient battery power or that you have an AC adapter present. 2. Connect the DSO leads to the DSO. 3. Connect the negative lead of the DSO to the engine ground terminal near the ignition switch. 4. Using a wiring diagram or pinout chart for the EM-330-1 find the #1 cylinder fuel injector. Identify the two wires and pins that connect it : A. B. 5. Connect to the pin that shows INJ 1. 6. Start the EM-330-1 and set the speed to around 500 RPM. 7. Adjust V/Div and T/Div until the pattern fills the screen. 8. Press hold to capture the pattern. Either print, draw or show the pattern to your instructor. 9. On the diagram label the following : A. Where does the injector begin receiving a signal; B. Where is the voltage at its maximum; C. The on time of the injector. 10. After the injector no longer has a voltage signal it will start to close and generate an inductive kick. Just after the in- ductive kick there will be a bump or hump called the pintle bump. This is where the injector closes. Label the pintle bump on the injector pattern. 11. Show your instructor your results and be prepared to discuss them. consulab.com info@consulab.com 41 EM-330-1_052616-95 DSO — Lab 4 Student Answer Sheet 4. A. B. 8. Attach your print to this answer sheet once labeled. 9. On the diagram label the following : A. Where does the injector begin receiving a signal; B. Where is the voltage at its maximum; C. The on time of the injector. 10. Label the pintle bump on the injector pattern. Name : Group : Date : Instructor : Grade : consulab.com info@consulab.com 42 EM-330-1_052616-95 DSO — Lab 5 DSO — Lab 5 Use the answer sheet for your answers. Do not write on this paper. Introduction : This lab will allow you to capture a current waveform pattern from a functioning fuel injector. After cap- turing it you will set cursors up to look at how long the injector pulse was. You will also look at the pintle opening signal. 1. Check out a DSO from the tool room. Insure that it has sufficient battery power or that you have an AC adapter present. 2. Connect the DSO leads to the DSO. 3. Connect the negative lead of the DSO to the engine ground terminal near the ignition switch. 4. Using a wiring diagram or pinout chart for the EM-330-1 find the #1 cylinder fuel injector. Identify the two wires and pins that connect it : A. B. 5. Connect a low reading current probe to channel A or 1. Turn on the current probe and zero adjust. Note : The current probe generates a voltage signal that is usually low. You need to either adjust your voltage low enough to see the pattern or if your DSO has current settings follow, use them. 6. Start the EM-330-1 and set the speed to around 500 RPM. 7. Adjust V/Div and T/Div until the pattern fills the screen. 8. Press hold to capture the pattern. Either print, draw or show the pattern to your instructor. 9. On the diagram label the following : A. Where does the injector begin receiving a signal; B. Where is the voltage at its maximum; C. The on time of the injector. 10. Notice as the current increases (called the ramp), there is a bump or hump that appears. This bump is the actual opening of the injector and is called the pintle bump. Label it on your diagram. 11. Show your instructor your results and be prepared to discuss them. consulab.com info@consulab.com 43 EM-330-1_052616-95 DSO — Lab 5 Student Answer Sheet 4. A. B. 8. Attach your print to this answer sheet once labeled. 9. On the diagram label the following : A. Where does the injector begin receiving a signal; B. Where is the voltage at its maximum; C. The on time of the injector. 10. Label the pintle bump on the injector pattern. Name : Group : Date : Instructor : Grade : consulab.com info@consulab.com 44 EM-330-1_052616-95 DSO — Lab 6 DSO — Lab 6 Use the answer sheet for your answers. Do not write on this paper. Introduction : In this lab you will capture a fuel pump pattern and analyze it to determine fuel pump speed. You will use a low current probe and the DSO. 1. Check out a DSO from the tool room. Insure that it has sufficient battery power or that you have an AC adapter present. 2. Connect the DSO leads to the DSO. 3. Connect the negative lead of the DSO to the engine ground terminal near the ignition switch. 4. Connect the current probe to the DSO channel A or 1. Use a low setting or the auto Voltage setting if your DSO has one. 5. Look at the wiring diagram and determine the color of the wires that supply power and ground to the pump : A. (color for B+) B. (color for B−) 6. Start the EM-330-1 and set it to a fast idle. 7. Adjust T/div and V/div as needed to have at least 10 humps on the screen. 8. Press the hold button. 9. Determine where the pattern repeats. Note : the pump will have an even number of commutators and will create a unique set of humps with a repeat once the pump has made one rotation. 10. Turn on the cursor function and set the first cursor to the beginning of a repeat pattern and the second cursor to the end of the repeat pattern. Do not hesitate to ask for help if you have not used the cursor function. 11. The time between the cursors is the amount of time that the pump took to make one full rotation. second 12. Divide the amount of time for one rotation into 1. This will give you the number of rotations in one second. rotations per second 13. Multiply the number by 60 seconds to get the RPM of the pump. RPM 14. Print your pattern and put your math work on the front. 15. Be prepared to show your math to your instructor. Note a good pump will spin at greater than 4500 RPM. A bad pump or one that has an electrical problem, will spin at a slower speed. consulab.com info@consulab.com 45 EM-330-1_052616-95 DSO — Lab 6 Student Answer Sheet 5. A. (color for B+) B. (color for B−) 11. second 12. rotations per second 13. RPM 14. Attach your print to this answer sheet. Name : Group : Date : Instructor : Grade : consulab.com info@consulab.com 46 EM-330-1_052616-95 DSO — Lab 7 DSO — Lab 7 Use the answer sheet for your answers. Do not write on this paper. Introduction : This lab will allow you to capture a voltage and a current waveform pattern from a functioning fuel injec- tor. After capturing it you will set cursors up to look at how long the injector actually stayed open. You will also look at the pintle opening and closing signal. 1. Check out a DSO from the tool room. Insure that it has sufficient battery power or that you have an AC adapter present. 2. Connect the DSO leads to the DSO. 3. Connect the negative lead of the DSO to the engine ground terminal near the ignition switch. 4. Using a wiring diagram or pinout chart for the EM-330-1 find the #1 cylinder fuel injector. Identify the two wires and pins that connect it : A. B. 5. Connect to the pin that shows INJ 1 to Channel A or 1. 6. Start the EM-330-1 and set the speed to around 500 RPM. 7. Adjust V/Div and T/Div until the pattern fills the screen. Note : you may have to trigger the pattern to get it centered on the screen. 8. Connect a low current probe to channel B or 2 and turn on the probe. Zero as necessary. 9. Close the clamp around the #1 fuel injector wire (labeled on the EM-330-1). 10. Turn on the cursors and use them to answer the following questions. 11. What is the applied voltage to the injector ? V 12. What is the applied ground voltage to the injector ? V 13. How long was the injector pulse ? mS 14. Measure from the pintle opening bump on the current waveform to the pintle closing bump on the voltage wave- form. This is the actual time that the injector was open : mS Note : The actual time open should be within .1mSec of injector pulse. If time is greater, the injectors are dirty. 15. Press hold to capture the pattern. Either print, draw or show the pattern to your instructor. 16. Show your instructor your results and be prepared to discuss them. consulab.com info@consulab.com 47 EM-330-1_052616-95 DSO — Lab 7 Student Answer Sheet 4. A. B. 11. What is the applied voltage to the injector ? V 12. What is the applied ground voltage to the injector ? V 13. How long was the injector pulse ? mS 14. This is the actual time that the injector was open : mS 15. Attach your print to this answer sheet. Name : Group : Date : Instructor : Grade : consulab.com info@consulab.com 48 EM-330-1_052616-95 DSO — Lab 8 DSO — Lab 8 Use the answer sheet for your answers. Do not write on this paper. Introduction : In this lab, you will look at the Accelerator Pedal Position Sensor (APP). You may use a capture feature that most DSO’s have called single trigger. This allows the DSO to capture one single trace and then activate the hold fea- ture. You instructor can help you set up the DSO to utilize this feature. 1. Check out a DSO from the tool room. Insure that it has sufficient battery power or that you have an AC adapter present. 2. Connect the DSO leads to the DSO. 3. Connect the negative lead of the DSO to the engine ground terminal near the ignition switch. 4. Using a wiring diagram or pinout chart for the EM-330-1 find the APP and identify the 6 wires : A. B. C. D. E. F. 5. Connect the DSO lead to the APP sig (either 1 or 2). 6. Turn on the EM-330-1. Note : it is not necessary to have it spinning. Use in the KOER position. 7. Move the accelerator pedal through its full motion and capture a pattern. 8. Save or print the pattern or show your instructor. 9. Use cursors and answer the following questions : A. What is the closed throttle voltage ? V B. What is the open throttle voltage ? V 10. Does the pattern show any glitches or bumps ? Yes No consulab.com info@consulab.com 49 EM-330-1_052616-95 DSO — Lab 8 Student Answer Sheet 4. A. B. C. D. E. F. 8. Attach your print to this answer sheet. 9. a) What is the closed throttle voltage ? V b) What is the open throttle voltage ? V 10. Yes No Name : Group : Date : Instructor : Grade : consulab.com info@consulab.com 50 EM-330-1_052616-95 DSO — Lab 9 DSO — Lab 9 Use the answer sheet for your answers. Do not write on this paper. Introduction : In the 8th lab we looked at the APP signal and saw how it went from a low voltage at closed throttle to a higher voltage at wide open throttle (WOT). The result of this voltage change is a change in the throttle valve. The throttle valve motor is pulse width modulated, which is another way of saying that the signal to the motor is on and then off many times second. The longer each pulse is the more the motor moves. After dual tracing both the APP and the Throt- tle Actuator you will need to expand the pattern to see the individual pulses. 1. Check out a DSO from the tool room. Insure that it has sufficient battery power or that you have an AC adapter present. 2. Connect the DSO leads to the DSO. 3. Connect the negative lead of the DSO to the engine ground terminal near the ignition switch. 4. Using a wiring diagram or pinout chart for the EM-330-1 find the Motor connection for the Throttle Actuator Control (TAC) circuit. 5. Connect Channel A to the APP. 6. Connect Channel B to the TAC. 7. Move the throttle from closed throttle to WOT and capture the pattern. Print or show your instructor. 8. If your DSO allows for expanding the pattern, show the actual pulses to the TAC. Print or show your instructor. consulab.com info@consulab.com 51 EM-330-1_052616-95 DSO — Lab 9 Student Answer Sheet 7. Attach your print to this answer sheet. 8. Attach your print to this answer sheet. Name : Group : Date : Instructor : Grade : consulab.com info@consulab.com 52 EM-330-1_052616-95 DSO — Lab 10 DSO — Lab 10 Use the answer sheet for your answers. Do not write on this paper. Introduction : The modern engine needs to know how much air is actually flowing through the throttle. In one of the scan- ner labs we looked at the Mass Air Flow (MAF). On the EM-330-1 MAF is adjustable. Follow the directions exactly since if you get the MAF to far from a real value, the ECM will go into a default mode. Once in default mode, you must clear codes with a scanner to accomplish this lab. The MAF will generate a different type of signal. 1. Check out a DSO from the tool room. Insure that it has sufficient battery power or that you have an AC adapter present. 2. Connect the DSO leads to the DSO. 3. Connect the negative lead of the DSO to the engine ground terminal near the ignition switch. 4. Using a wiring diagram or pinout chart for the EM-330-1 and identify the MAF Sig pin at the ECM. 5. Make sure the MAF adjustment switch is in the sensor position. 6. Connect the DSO ground to the ground pin. 7. Connect the DSO input to the pin. 8. Turn on the EM-330-1 and set the RPM control to about the 12 o’clock position. 9. Expand the pattern to fill the screen with at least ten patterns. 10. Print or show your instructor the pattern. 11. Switch the adjustment switch to the adjust position and slowly move the knob. What happens as you increase the amount of MAF ? 12. What happens as you reduce the amount of MAF ? 13. What type of a signal is the MAF generating ? consulab.com info@consulab.com 53 EM-330-1_052616-95 DSO — Lab 10 Student Answer Sheet 7. Connect the DSO input to the pin. 10. Attach your print to this answer sheet. 11. What happens as you increase the amount of MAF ? 12. What happens as you reduce the amount of MAF ? 13. What type of a signal is the MAF generating ? Name : Group : Date : Instructor : Grade : consulab.com info@consulab.com 54 EM-330-1_052616-95 DSO — Lab 11 DSO — Lab 11 Use the answer sheet for your answers. Do not write on this paper. Introduction : In this lab, you will show the effect of changing MAF by looking at a fuel injector pattern. The MAF and Fuel Injector pattern will be dual traced on the DSO. 1. Check out a DSO from the tool room. Insure that it has sufficient battery power or that you have an AC adapter present. 2. Connect the DSO leads to the DSO. 3. Connect the negative lead of the DSO to the engine ground terminal near the ignition switch. 4. Using a wiring diagram or pinout chart for the EM-330-1, identify the MAF Sig pin at the ECM. Connect channel A or 1 to the pin. Pin number 5. Using the wiring diagram or pinout chart for the EM-330-1, identify the fuel injector signal pin on the breakout box. Connect channel B or 2 to the pin. Pin number 6. Start the EM-330-1 and set RPM to the 12 o’clock position. 7. Adjust the DSO so both the fuel injector pattern shows completely and the MAF. 8. Print or show your instructor. 9. Move the adjustment switch up to the adjust position. Turn the adjustment slowly counterclockwise. Capture, print or show your instructor. 10. Turn the adjustment slowly clockwise. Capture, print or show your instructor. 11. What is the relationship between MAF and Fuel Injection ? consulab.com info@consulab.com 55 EM-330-1_052616-95 DSO — Lab 11 Student Answer Sheet 4. Connect channel A or 1 to the pin. Pin number 5. Connect channel B or 2 to the pin. Pin number 8. Attach your print to this answer sheet. 9. Attach your print to this answer sheet. 10. Attach your print to this answer sheet. 11. What is the relationship between MAF and Fuel Injection ? Name : Group : Date : Instructor : Grade : consulab.com info@consulab.com 56 EM-330-1_052616-95 DSO — Lab 12 DSO — Lab 12 Use the answer sheet for your answers. Do not write on this paper. Introduction : During this lab, you will be using a DLC breakout box (BOB). DO NOT TRY AND PROBE THE DLC PINS WITHOUT THE BREAKOUT BOX. You will damage the DLC. 1. Check out a DSO from the tool room. Insure that it has sufficient battery power or that you have an AC adapter present. 2. Connect the DSO leads to the DSO. 3. Connect the negative lead of the DSO to the engine ground terminal near the ignition switch, or use either pin 4 or 5 of the DLC Breakout Box. 4. Connect the positive lead into pin 1 of the DLC BOB. 5. Turn on the EM-330-1 and set the RPM to about 12 o’clock position. 6. Pin one carries the low speed communications of the CAN Bus. 7. Capture the signal, print or show your instructor. 8. Expand the pattern so you can see what the individual packets of information look like. 9. Capture the expanded pattern, print or show your instructor. consulab.com info@consulab.com 57 EM-330-1_052616-95 DSO — Lab 12 Student Answer Sheet 7. Attach your print to this answer sheet. 9. Attach your print to this answer sheet. Name : Group : Date : Instructor : Grade : consulab.com info@consulab.com 58 EM-330-1_052616-95 DSO — Lab 13 DSO — Lab 13 Use the answer sheet for your answers. Do not write on this paper. Introduction : During this lab, you will be using a DLC breakout box (BOB). DO NOT TRY AND PROBE THE DLC PINS WITHOUT THE BREAKOUT BOX. You will damage the DLC. 1. Check out a DSO from the tool room. Insure that it has sufficient battery power or that you have an AC adapter present. 2. Connect the DSO leads to the DSO. 3. Connect the negative lead of the DSO to the engine ground terminal near the ignition switch, or use either pin 4 or 5 of the DLC Breakout Box. 4. Connect the positive lead into pin 6 of the DLC BOB. 5. Turn on the EM-330-1 and set the RPM to about 12 o’clock position. 6. Pin 6 carries half of the high speed communications of the CAN Bus. 7. Capture the signal, print or show your instructor. 8. Expand the pattern so you can see what the individual packets of information look like. 9. Capture the expanded pattern, print or show your instructor. consulab.com info@consulab.com 59 EM-330-1_052616-95 DSO — Lab 13 Student Answer Sheet 7. Attach your print to this answer sheet. 9. Attach your print to this answer sheet. Name : Group : Date : Instructor : Grade : consulab.com info@consulab.com 60 EM-330-1_052616-95 DSO — Lab 14 DSO — Lab 14 Use the answer sheet for your answers. Do not write on this paper. Introduction : During this lab, you will be using a DLC breakout box (BOB). DO NOT TRY AND PROBE THE DLC PINS WITHOUT THE BREAKOUT BOX. You will damage the DLC. We will look at the signals off of pin 6 and 14 of the DLC. These signals should be mirror images. 1. Check out a DSO from the tool room. Insure that it has sufficient battery power or that you have an AC adapter present. 2. Connect the DSO leads to the DSO. 3. Connect the negative lead of the Channel A of the DSO to the engine ground terminal near the ignition switch, or use either pin 4 or 5 of the DLC Breakout Box. 4. Connect the positive lead into pin 6 of the DLC BOB. 5. Connect the positive lead of channel B (2) into pin 14 of the BOB. 6. Turn on the EM-330-1 and set the RPM to about 12 o’clock position. 7. Capture the signal, print or show your instructor. 8. Expand the pattern so you can see what the individual packets of information look like. 9. Capture the expanded pattern, print or show your instructor. 10. Expanded, does the pattern look like a mirror image ? Yes No consulab.com info@consulab.com 61 EM-330-1_052616-95 DSO — Lab 14 Student Answer Sheet 7. Attach your print to this answer sheet. 9. Attach your print to this answer sheet. 10. Yes No Name : Group : Date : Instructor : Grade : consulab.com info@consulab.com 62 EM-330-1_052616-95 DSO — Lab 15 DSO — Lab 15 Use the answer sheet for your answers. Do not write on this paper. Introduction : The ignition system is one of the systems that is controlled by the ECM. By utilizing a variety of inputs the ECM can control the amount of time that the ignition coil is being charged. The four coils contain the ignition modules making it impossible to obtain a primary pattern. In this lab we will look at the ignition control signal that comes from the ECM and goes to each ignition coil. 1. Check out a DSO from the tool room. Insure that it has sufficient battery power or that you have an AC adapter present. 2. Connect the DSO leads to the DSO. 3. Connect the negative lead of the Channel A of the DSO to the engine ground terminal near the ignition switch. 4. Identify the control circuit for the #1 ignition coil off the wiring diagram. Pin # Connector # 5. Start the EM-330-1 and set the RPM to the 12 o’clock position. 6. Capture and print the pattern or show your instructor. 7. Use cursors to determine the amount of time that the ignition coil is on and being charged. mSec Note : GM usually has over 2.5 mSec of on time. 8. Did coil #1 have sufficient on time ? consulab.com info@consulab.com 63 EM-330-1_052616-95 DSO — Lab 15 Student Answer Sheet 4. Pin # Connector # 6. Attach your print to this answer sheet. 7. Determine the amount of time that the ignition coil is on and being charged. mSec. 8. Did coil #1 have sufficient on time ? Name : Group : Date : Instructor : Grade : consulab.com info@consulab.com 64 EM-330-1_052616-95 DSO — Lab 16 DSO — Lab 16 Use the answer sheet for your answers. Do not write on this paper. Introduction : The ignition system is one of the systems that is controlled by the ECM. By utilizing a variety of inputs the ECM can control the amount of time that the ignition coil is being charged. The four coils contain the ignition modules making it impossible to obtain a primary pattern. In this lab, we will look at the ignition coil current flow. 1. Check out a DSO from the tool room. Insure that it has sufficient battery power or that you have an AC adapter present. 2. Connect the DSO leads to the DSO. 3. Connect the negative lead of the Channel A of the DSO to the engine ground terminal near the ignition switch. 4. Connect the current probe around ignition coil #1. 5. Start the EM-330-1 and set the RPM to the 12 o’clock position. 6. Capture and print the pattern or show your instructor. consulab.com info@consulab.com 65 EM-330-1_052616-95 DSO — Lab 16 Student Answer Sheet 6. Attach your print to this answer sheet. Name : Group : Date : Instructor : Grade : consulab.com info@consulab.com 66 EM-330-1_052616-95 DSO — Lab 17 DSO — Lab 17 Use the answer sheet for your answers. Do not write on this paper. Introduction : In this lab, we will attempt to capture both the wake-up signal for the CAN Bus and some of the informa- tion packets. The wake-up signal is the first signal that the CAN Bus system must see. It does just what the name implies : it wakes up the system. It is usually a slightly higher voltage than the running CAN Bus voltage. It will require you to use the single trigger function and adjust the time base until you have the wake-up signal and a few information packets. 1. Check out a DSO from the tool room. Insure that it has sufficient battery power or that you have an AC adapter present. 2. Connect the DSO leads to the DSO. 3. Connect the negative lead of the Channel A of the DSO to the engine ground terminal near the ignition switch, or use either pin 4 or 5 of the DLC Breakout Box. 4. Connect the positive input lead from channel A or #1 into pin 1 of the DLC BOB. 5. Set the trigger function to capture one event. 6. Turn on the EM-330-1 and capture the wake-up signal and at least one packet of information. Note : This may take many tries and is the most difficult capture in this manual. 7. Print or show your instructor. consulab.com info@consulab.com 67 EM-330-1_052616-95 DSO — Lab 17 Name : Group : Date : Instructor : Grade : Student Answer Sheet 7. Attach your print to this answer sheet. consulab.com info@consulab.com 68 EM-330-1_052616-95 Test Banks Test Banks consulab.com info@consulab.com 69 EM-330-1_052616-95 Test Bank 1 (DMM Use) Test Bank 1 (DMM Use) Use the answer sheet for your answers. Do not write on this paper. 1. Technician A states that the REF notation for the ECM connector signifies battery voltage. Technician B states that the REF notation indicates battery ground. Who is correct ? A. Technician A only B. Technician B only C. Both Technician A and B D. Neither Technician A or B 2. The ECM connector pin-out chart indicates a LOW REF. This is actually : A. 5 Volts B. Battery voltage C. Ground or 0 Volts D. A variable input voltage 3. PIN #58 on the X-2 connector is for the : A. ECT signal B. IAT signal C. Reference voltage D. Ground Voltage 4. Pin #37 on the X-1 connector shows 2.5 Volts and does not change with changing conditions. Why ? A. It is a 2.5 Volt power supply B. It is a partial ground on a 5 Volt source C. It is a frequency modulated signal where the frequency changes not the voltage D. I do not know 5. Technician A states that the power for the injectors comes from the powertrain relay. Technician B states that the 4 injectors are wired in parallel with a 10 amp fuse. Who is correct ? A. Technician A only B. Technician B only C. Both Technician A and B D. Neither Technician A or B consulab.com info@consulab.com 70 EM-330-1_052616-95 Test Bank 1 (DMM Use) 6. Pin 73 of the X-1 connector is probed with a DMM set to V. What would be considered a normal reading ? A. Battery voltage B. Battery ground voltage C. 5 Volts D. Variable voltage depending on conditions 7. Pin 67 of the X-1 connector is probed with a DMM set to V. What would be considered a normal reading ? A. Battery voltage B. Battery ground voltage C. 5 Volts D. Variable voltage depending on conditions 8. Pin 58 on the X-2 connector is probed with a DMM set to V. What would be considered a normal reading ? A. Battery voltage B. Battery ground voltage C. 5 Volts D. Variable voltage depending on conditions 9. What does the IAT and the ECT have in common. A. They both are temperature oriented and vary the voltage B. They both are pressure oriented C. They both receive battery voltage D. They both are powered off the Powertrain relay 10. Two technicians are discussing using a DMM on the DLC. Technician A states that he can backprobe the connector to get voltage readings. Technician B states that a DLC Breakout Box should be used to protect the DLC pins from damage. Who is correct ? A. Technician A only B. Technician B only C. Both Technician A and B D. Neither Technician A or B consulab.com info@consulab.com 71 EM-330-1_052616-95 Test Bank 1 (DMM Use) Student Answer Sheet Circle the correct answer. 1. A B C D 2. A B C D 3. A B C D 4. A B C D 5. A B C D 6. A B C D 7. A B C D 8. A B C D 9. A B C D 10. A B C D Name : Group : Date : Instructor : Grade : consulab.com info@consulab.com 72 EM-330-1_052616-95 Test Bank 2 (Scanner Use) Test Bank 2 (Scanner Use) Use the answer sheet for your answers. Do not write on this paper. 1. Technician A states that a scanner is always connected to the DLC. Technician B states that the scanner will receive its power and ground from the DLC. Who is correct ? A. Technician A only B. Technician B only C. Both Technician A and B D. Neither Technician A or B 2. What must be done first for a scanner to show data ? A. The scanner must be plugged into 110V AC power B. The VIN must be entered into the scanner C. The scanner must know what type of fuel system is present D. The ignition key must be in the off position 3. Based off the labs, as the voltage from the ECT goes up the temperature is : A. Staying the same B. Going up C. Going down D. Not enough information is given to tell 4. The scanner reads injector pulse width as 1.8 mSec. Technician says it will increase as the MAP indicates additional air flow. Technician B states that it will decrease as the throttle angle is reduced. Who is correct ? A. Technician A only B. Technician B only C. Both Technician A and B D. Neither Technician A or B 5. The graph data function is on and shows the HO2S to be moving with an average voltage of 4.5 Volts. This indicates a : A. Malfunction in the circuit B. The system is running rich C. The system is running lean D. The system is running normal consulab.com info@consulab.com 73 EM-330-1_052616-95 Test Bank 2 (Scanner Use) 6. When the knob used to adjust MAF is turned, the Fuel Injector pulse changes, but the voltage at pin 37 of the X-1 connector remains at 2.5V. Why ? A. The MAF is faulty B. The Fuel Injector is shorted C. The MAF is faulty D. The MAF generates a frequency signal at constant voltage 7. Technician A states that the DLC connector will have ground at pins #4 and #5. What is the difference between the grounds ? A. #4 is a chassis ground, #5 is an ECM ground B. Both are system or chassis grounds C. #4 is a sensor ground, #5 is a chassis ground D. Both are grounds that are connected to the ECM 8. Data showing on the scanner indicates that a DTC is present. What should also be present with the DTC ? A. A time stamp indicating when the DTC was set B. What will be necessary to clear the DTC C. What circuit number the DTC is in D. Freeze frame data showing the conditions present when the DTC was set 9. The voltage at pin # 39 of the X-2 connector varies as the adjustment know is turned. This indicates that the signal is A. Current modulated B. Frequency modulated C. Voltage modulated D. None of the above 10. Technician A states that pin #16 of the DLC has battery voltage all the time. Tecnichnian B states that pins # and #5 have ground potential. Who is correct ? A. Technician A only B. Technician B only C. Both Technician A and B D. Neither Technician A or B consulab.com info@consulab.com 74 EM-330-1_052616-95 Test Bank 2 (Scanner Use) Student Answer Sheet Circle the correct answer. 1. A B C D 2. A B C D 3. A B C D 4. A B C D 5. A B C D 6. A B C D 7. A B C D 8. A B C D 9. A B C D 10. A B C D Name : Group : Date : Instructor : Grade : consulab.com info@consulab.com 75 EM-330-1_052616-95 Test Bank 3 (DSO Use) Test Bank 3 (DSO Use) Use the answer sheet for your answers. Do not write on this paper. 1. A DSO is nothing more than a device that can : A. measure current B. measure resistance C. measure voltage D. calculate ohms law 2. Technician A states that the DSO can measure over a period of time. Technician B states that time appears across the screen from left to right. Who is correct ? A. Technician A only B. Technician B only C. Both Technician A and B D. Neither Technician A or B 3. Trigger is : A. the point where the pattern is locked on the screen B. the voltage that the DSO must see to lock C. whether the voltage is rising or falling D. all of the above 4. A dual trace DSO is connected to Pin’s #37 of connector X-1 and #10 of the X-2 connector. Comparing the patterns will show : A. the relationship between a MAF signal and Ignition coil on time B. how two sensors relate to one another C. that changes in MAF will result in Injection on time D. how MAP influences the fuel pump pulse 5. A calculation of fuel pump speed is made and the pump is spinning at 3875 RPM. Technician A states that this speed is too slow. Technician B states that the pressure might be too high at this RPM. Who is correct ? A. Technician A only B. Technician B only C. Both Technician A and B D. Neither Technician A or B consulab.com info@consulab.com 76 EM-330-1_052616-95 Test Bank 3 (DSO Use) 6. A dual trace pattern shows the current waveform for a Fuel injector and a Voltage waveform for the same injector. Technician A states that the pintle bump on the voltage waveform indicates where the injector opened. Technician B states that the pintle bump on the current waveform indicates when the injector closes. Who is correct ? A. Technician A only B. Technician B only C. Both Technician A and B D. Neither Technician A or B 7. The Fuel injector voltage waveform can indicate ground voltage. It should be : A. near battery voltage B. at maximum current C. at 5 Volts Reference D. 0 Volts 8. To calculate fuel pump RPM Technician A states to use the time between repeating patterns. Technician B states the repeat time is the number of rotations per second. Who is correct ? A. Technician A only B. Technician B only C. Both Technician A and B D. Neither Technician A or B 9. Ignition coil on time can be measured by looking at : A. the voltage pulse at pin #22 of X2 connector B. a current probe around the fuel injector power lead C. a voltage pattern off of pin # 73 of X1 connector D. an ignition coil primary waveform pattern 10. Technician A states that the TAC will move as the ignition system advances the spark. Technician B states that the TAC will move as the APP voltage changes. Who is correct ? A. Technician A only B. Technician B only C. Both Technician A and B D. Neither Technician A or B consulab.com info@consulab.com 77 EM-330-1_052616-95 Test Bank 3 (DSO Use) Student Answer Sheet Circle the correct answer. 1. A B C D 2. A B C D 3. A B C D 4. A B C D 5. A B C D 6. A B C D 7. A B C D 8. A B C D 9. A B C D 10. A B C D Name : Group : Date : Instructor : Grade : consulab.com info@consulab.com 78 EM-330-1_052616-95 EM-330-1 Power Distribution Wiring Diagram EM-330-1 Power Distribution Wiring Diagram 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 D ESSIN E : VER IFIE : D ATE D E C R EATIO N : IN D IC E D ATE M O D IFIC ATIO N D ES. 2014/08/27 PO W ER DISTRIBU TIO N EM -330-1 PO W ER SU PPLY M AIN 15A BAT O FF IG N STAR T AC C IG N ITIO N SW ITC H BAT 15A BAT LAM P IG N . LAM P R 1 ( D ASH ) 85 86 87 30 87A 85 86 87 30 87A M O TO R D R IV E AC C BAT PO W ER SU PPLY 1/5 G N D IG N R 2 ( D ASH ) START SPEED CO N TRO L REV 5 IGN IGN 15A ACC 10A START 15A M 1 1 22 1 consulab.com info@consulab.com 79 EM-330-1_052616-95 EM-330-1 Engine Performance Wiring Diagram EM-330-1 Engine Performance Wiring Diagram (page 1 of 4) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 D ESSIN E : VER IFIE : D ATE D E C R EATIO N : IN D IC E D ATE M O D IFIC ATIO N D ES. 2014/08/27 EN GIN E PERFO RM AN CE 1/4 EM -330-1 2/5 1 D K/BLU 41 BR N 47 W H T/BLK 18 LT BLU 21 PPL 67 TAN 6 G R N /W H T 42 D K G R N 66 G R Y 24 TAN ACCELERATO R PEDAL PO SITIO N SEN SO R DK BLUE E BRN D WHT/BLK F LT/BLU B PPL A TAN C PO W ER TR AIN R ELAY ( FR AM E ) 85 86 87 30 87A BAT PO W ERTRAIN 10A X1 FU EL PU M P R ELAY ( FR AM E ) 85 86 87 30 87A FU EL PU M P 15A BAT FU EL PU M P M ECM 22 PPL 26 O R G /W H T 23 LT BLU 24 D K G R N /W H T BREAKO U T BO X 9 BR N X2 FU EL LEVEL SEN SO R A 39 PPL 13 YEL 73 PN K/BLK 1 IN JECTO RS 2 3 4 A A A A B B B B D C B IGN ITIO N CO IL M O DU LE 4 B A C D IGN ITIO N CO IL M O DU LE 3 B A C D IGN ITIO N CO IL M O DU LE 2 B A C D IGN ITIO N CO IL M O DU LE 1 B A C D PO W BREAKO U T BO X ECM IN JECTO RS LIGHTS #1 #2 #3 #4 73 BLK/W H T PNK/ORG PPL BLK/WHT DK GRN GRY/BLK TAN PNK GRN/BLK PNK PNK/BLK PNK BLU/BLK PNK 6 TAN 10 LT G R N /BLK 7 PN K/BLK 8 LT BLU /BLK PNK/BLK GRN/WHT BRN BLK PNK/BLK BLK PNK/BLK BLK PNK/BLK BLK BRN BRN BRN LT/BLU ORG/WHT PPL APP SIG 1 LO W R EF 5V R EF 2 APP SIG 2 LO W R EF 5V R EF 1 PR ESS SIG 5V R EF 1 LO W R EF FL LVL SIG PO W R LY IG N 1 FL PM P R LY IC 1 IC 2 IC 3 IC 4 LO W R EF G N D IN J 1 IN J 2 IN J 3 IN J 4 GRYBLK FU EL TAN K PRESSU RE SEN SO R 1414718216764266 24 39 1373 22262324 973 6 10 7 8 REV 5 LED STRIPE 1 22 1 C urrent Loop C urrent Loop C urrent Loop consulab.com info@consulab.com 80 EM-330-1_052616-95 EM-330-1 Engine Performance Wiring Diagram EM-330-1 Engine Performance Wiring Diagram (page 2 of 4) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 D ESSIN E : VER IFIE : D ATE D E C R EATIO N : IN D IC E D ATE M O D IFIC ATIO N D ES. 2014/08/27 EM -330-1 3/5 19 PN K/BLK 58 LT BLU 37 YEL X1 BREAKO U T BO X ECM 3 BR N ACC IGN 42 TAN TAN X2 ECM IN LET AIR TEM PERATU RE D E A C B M ASS AIR FLO W PO W M AF EN GIN E CO O LAN T TEM PERATU RE A B 58 YEL 4 TAN M AP 39 LT G R N 49 O R G /BLK 13 G R Y BREAKO U T BO X SIGN AL GEN ERATO R BAT 20 R ED /W H T EN GIN E PERFO RM AN CE 2/4 LT BLU TAN YEL PNK/BLK BLK/WHT YEL TAN IG N 1 VO L IAT SIG M AF SIG AC C VO L BATT VO L LO W R EF EC T SIG LO W R EF M AP SIG LO W R EF 5V R EF 1 IGN J35 J30 J3 J2 EC T IAT 1958 37 320 42584 3949 13 M AN IFO LD ABSO LU TE PRESSU RE 2 1 3 LT GRN GRY ORG/BLK APP SIG 2 AD JU ST SEN SO R M AF (X1-18) APP SIG 1 (X1-1) REV 5 AD JU ST AD JU ST AD JU ST SEN SO R SEN SO R SEN SO R consulab.com info@consulab.com 81 EM-330-1_052616-95 EM-330-1 Engine Performance Wiring Diagram EM-330-1 Engine Performance Wiring Diagram (page 3 of 4) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 D ESSIN E : VER IFIE : D ATE D E C R EATIO N : IN D IC E D ATE M O D IFIC ATIO N D ES. 2014/08/27 EM -330-1 4/5 37 PPL/W H T X2 ECM H O 2S-1 SELEC TO R HO 2S-1 D C A B 48 TAN /W H T 65 G R Y/W H T PO W HO 2S-2 D C A B PO W 38 PPL 68 TAN /W H T 66 G R Y/W H T BREAKO U T BO X CRAN KSHAFT PO SITIO N SEN SO R 3 2 1 54 LT/G R N 5 PPL 45 YEL 33 D K BLU 20 TAN 46 O R G CAM SHAFT PO SITIO N SEN SO R C B A 51 D K BLU 50 G R Y KN O CK SEN SO R B A THRO TTLE ACTU ATO R CO N TRO L C E F D A B M 16 YEL 32 BR N 57 D K G R N 40 TAN 53 G R Y 59 PPL EN GIN E PERFO RM AN CE 3/4 PPL/WTH TAN/WHT GRY/WHT PNK/BLK PNK/BLK PPL TAN/WTH GRY/WTH LT GRN PPL YEL DK BLU TAN ORG DK BLU GRY YEL BRN DK GRN TAN GRY PPL START J26 J27 SIGN AL GEN ERATO R 3748653868665454533204651 50 163257405359 H IG H SIG 1 LO W SIG 1 LO W SEN S1 H I SIG 2 LO W SIG 2 LO W SEN S 2 5V R EF 2 LO W R EF C KP SIG 5V R EF 1 LO W R EF C M P SIG KS SIG 1 KS SIG 2 TAC C TR L 1 TAC C TR L 2 TP 1 SIG LO W R EF 5V R EF 2 TP 2 SIG J27 J27 SIGN AL GEN ERATO R Zaied Souilah 2015/12/16 REV 5 AD JU ST SEN SO R consulab.com info@consulab.com 82 EM-330-1_052616-95 EM-330-1 Engine Performance Wiring Diagram EM-330-1 Engine Performance Wiring Diagram (page 4 of 4) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 D ESSIN E : VER IFIE : D ATE D E C R EATIO N : IN D IC E D ATE M O D IFIC ATIO N D ES. 2014/08/27 EM -330-1 5/5 EN GIN E PERFO RM AN CE 4/4 X1 BCM D 10 R ED /BLK D 12 R ED /W H T E12 BLK 61 BLK 64 BLK 62 R ED /W H T B3 R ED /W H T X3X4 B5 BR N 14 1 16 5 4 6 DLC CO N N ECTO R BAT X2 1 BR N /W H T 19 BR N 38 D K G R N X1 BREAKO U T BO X 2 TAN /BLK 20 TAN 44 TAN 43 TAN /BLK C 8 BR N X4 3 4 1 2 THEFT DETERREN TRED/WHT BRN BLK/WHT DK GRN RED/WHT DK GRN TAN TAN/BLK BLK BLK/WHT ACC ECM SER IAL - SER IAL + 4443 120Ω REV 5 consulab.com info@consulab.com 83 EM-330-1_052616-95 Notes Notes 400-6330 Zéphirin-Paquet St. Québec QC G2C 0M3 Canada © ConsuLab Educatech Inc, 2024. All rights reserved. General Description Educational Advantages Application Standard Equipment and Features Student Assignments DMM vs Scanner DMM vs Scanner — Lab 1 Student Answer Sheet DMM vs Scanner — Lab 2 Student Answer Sheet DMM vs Scanner — Lab 3 Student Answer Sheet DMM vs Scanner — Lab 4 Student Answer Sheet DMM vs Scanner — Lab 5 Student Answer Sheet Using a Scanner Using A Scanner — Lab 1 Student Answer Sheet Using a Scanner — Lab 2 Student Answer Sheet Using a Scanner — Lab 3 Student Answer Sheet Using a Scanner — Lab 4 Student Answer Sheet Using a Scanner — Lab 5 Student Answer Sheet Using a Scanner — Lab 6 Student Answer Sheet Using a Scanner — Lab 7 Student Answer Sheet DSO DSO — Lab 1 Student Answer Sheet DSO — Lab 2 Student Answer Sheet DSO — Lab 3 Student Answer Sheet DSO — Lab 4 Student Answer Sheet DSO — Lab 5 Student Answer Sheet DSO — Lab 6 Student Answer Sheet DSO — Lab 7 Student Answer Sheet DSO — Lab 8 Student Answer Sheet DSO — Lab 9 Student Answer Sheet DSO — Lab 10 Student Answer Sheet DSO — Lab 11 Student Answer Sheet DSO — Lab 12 Student Answer Sheet DSO — Lab 13 Student Answer Sheet DSO — Lab 14 Student Answer Sheet DSO — Lab 15 Student Answer Sheet DSO — Lab 16 Student Answer Sheet DSO — Lab 17 Student Answer Sheet Test Banks Test Bank 1 (DMM Use) Student Answer Sheet Test Bank 2 (Scanner Use) Student Answer Sheet Test Bank 3 (DSO Use) Student Answer Sheet EM-330-1 Power Distribution Wiring Diagram EM-330-1 Engine Performance Wiring Diagram
